6 Instruction Guide
Replacing the NPD Bead
5 Remove the necessary GC covers.
• 7890A models: Raise the GC detector top cover. Loosen
the screw on the electronics top cover and lift cover
(Figure 2).
• 6890 models: Gently lift the gray plastic detector top
cover (with the holes and ventilation slots).
For models with the hinge bracket: The hinge is a
metal bracket attached to the oven top. Pull the clip at its
top toward you to release the hinge pin. Push the pin to
the left to release the cover. Raise the cover and remove it.
Remove the top electronics cover. Push the clips
underneath the cover (shown in Figure 3) toward the
center to disengage them.
Figure 2 Lifting the electronics top cover (7890A)
NPD Bead Replacement.book Page 6 Monday, October 13, 2008 2:32 PM
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